New Zealand fur seal demographics

Wekakura Point, 2008

Mark-recapture estimate, 29–31 Jan 2008

Total marked
412
Mean estimate
538.0
Range
519.4 – 559.0

Mark-recapture counts

Count number Date Time Sector Unmarked count Marked count Dead marked Dead unmarked Total marked Cum. dead Estimate?
1 29 Jan 2008 06:22 – 06:33 Headland 1 28 74
31 Jan 2008 09:02 – 09:42 Headland 2 17 66
31 Jan 2008 10:20 – 10:42 Headland 3 19 75
All sectors 64 215 - - 412 - 534.4
2 29 Jan 2008 06:53 – 07:06 Headland 1 15 49
31 Jan 2008 10:02 – 10:03 Headland 2 22 58
31 Jan 2008 11:02 – 11:24 Headland 3 21 55
All sectors 58 162 - - 412 - 559.0
3 29 Jan 2008 07:26 – 07:41 Headland 1 18 67
31 Jan 2008 10:05 – 11:12 Headland 2 19 56
31 Jan 2008 11:44 – 12:04 Headland 3 19 46
All sectors 56 169 - - 412 - 548.0
4 29 Jan 2008 08:01 – 08:15 Headland 1 19 62
31 Jan 2008 12:00 – 12:21 Headland 2 12 57
31 Jan 2008 12:24 – 12:42 Headland 3 14 53
All sectors 45 172 - - 412 - 519.4
5 30 Jan 2008 08:00 – 08:15 Headland 1 25 80
31 Jan 2008 12:41 – 01:01 Headland 2 9 39
All sectors 34 119 - - 412 - 529.0

Dead count, 28–30 Jan 2008

Count
2

Dead counts

Date Sector Fresh Decomposing Dry Count
28–30 Jan 2008 Headland 1 - - - -
28–30 Jan 2008 Headland 2 2 - - 2
28–30 Jan 2008 Headland 3 - - - -
All sectors 2 - - 2